bd52d17906
too large to list, but see: http://gcc.gnu.org/gcc-3.4/changes.html http://gcc.gnu.org/gcc-4.0/changes.html http://gcc.gnu.org/gcc-4.1/changes.html for the details.
152 lines
6.1 KiB
C
152 lines
6.1 KiB
C
/* Definitions of target machine for gcc for Super-H using sh-superh-elf.
|
|
Copyright (C) 2001 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU CC.
|
|
|
|
GNU CC is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU CC is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
|
|
/* This header file is used when the vendor name is set to 'superh'.
|
|
It configures the compiler for SH4 only and switches the default
|
|
endianess to little (although big endian is still available).
|
|
It also configures the spec file to the default board configuration
|
|
but in such a way that it can be overridden by a boardspecs file
|
|
(using the -specs= option). This file is expected to disable the
|
|
defaults and provide options --defsym _start and --defsym _stack
|
|
which are required by the SuperH configuration of GNU ld.
|
|
|
|
This file is intended to overide sh.h */
|
|
|
|
|
|
#ifndef _SUPERH_H
|
|
#define _SUPERH_H
|
|
#endif
|
|
|
|
|
|
#undef TARGET_VERSION
|
|
#define TARGET_VERSION fprintf (stderr, " (SuperH SH special %s)", __DATE__);
|
|
|
|
|
|
/* We override TARGET_PROCESSOR_SWITCHES in order to remove all the unrequired cpu options
|
|
and add options for all the SuperH CPU variants:
|
|
-m4-100 is an alias for -m4.
|
|
-m4-200 is an alias for -m4.
|
|
-m4-400 is an alias for -m4-nofpu and passes -isa=sh4-nommu-nofpu to the assembler.
|
|
-m4-500 is an alias for -m4-nofpu and passes -isa=sh4-nofpu to the assembler. */
|
|
#undef TARGET_PROCESSOR_SWITCHES
|
|
#define TARGET_PROCESSOR_SWITCHES \
|
|
{"4-500", TARGET_NONE, "SH4 500 series (FPU-less)" }, \
|
|
{"4-500", SELECT_SH4_NOFPU, "" }, \
|
|
{"4-400", TARGET_NONE, "SH4 400 series (MMU/FPU-less)" }, \
|
|
{"4-400", SELECT_SH4_NOFPU, "" }, \
|
|
{"4-200-single-only", TARGET_NONE, "SH4 200 series with double = float (SH3e ABI)" }, \
|
|
{"4-200-single-only", SELECT_SH4_SINGLE_ONLY, "" }, \
|
|
{"4-200-single", TARGET_NONE, "SH4 200 series with single precision pervading" }, \
|
|
{"4-200-single", SELECT_SH4_SINGLE, "" }, \
|
|
{"4-200-nofpu", TARGET_NONE, "SH4 200 series using soft floating point" }, \
|
|
{"4-200-nofpu", SELECT_SH4_NOFPU, "" }, \
|
|
{"4-200", TARGET_NONE, "SH4 200 series" }, \
|
|
{"4-200", SELECT_SH4_NOFPU, "" }, \
|
|
{"4-100-single-only", TARGET_NONE, "SH4 100 series with double = float (SH3e ABI)" }, \
|
|
{"4-100-single-only", SELECT_SH4_SINGLE_ONLY, "" }, \
|
|
{"4-100-single", TARGET_NONE, "SH4 100 series with single precision pervading" }, \
|
|
{"4-100-single", SELECT_SH4_SINGLE, "" }, \
|
|
{"4-100-nofpu", TARGET_NONE, "SH4 100 series using soft floating point" }, \
|
|
{"4-100-nofpu", SELECT_SH4_NOFPU, "" }, \
|
|
{"4-100", TARGET_NONE, "SH4 100 series" }, \
|
|
{"4-100", SELECT_SH4_NOFPU, "" }, \
|
|
{"4-single-only", TARGET_NONE, "Generic SH4 with double = float (SH3e ABI)" }, \
|
|
{"4-single-only", SELECT_SH4_SINGLE_ONLY, "" }, \
|
|
{"4-single", TARGET_NONE, "Generic SH4 with single precision pervading" }, \
|
|
{"4-single", SELECT_SH4_SINGLE, "" }, \
|
|
{"4-nofpu", TARGET_NONE, "Generic SH4 using soft floating point" }, \
|
|
{"4-nofpu", SELECT_SH4_NOFPU, "" }, \
|
|
{"4", TARGET_NONE, "Generic SH4 (default)" }, \
|
|
{"4", SELECT_SH4, "" }
|
|
|
|
|
|
/* Provide the -mboard= option used by the boardspecs file */
|
|
#undef SUBTARGET_OPTIONS
|
|
#define SUBTARGET_OPTIONS \
|
|
{ "board=", &boardtype, "Board name [and momory region].", 0 }, \
|
|
{ "runtime=", &osruntime, "Runtime name.", 0 }, \
|
|
|
|
/* These are required by the mboard= option and runtime= option
|
|
and are defined in sh.c but are not used anywhere */
|
|
extern const char * boardtype;
|
|
extern const char * osruntime;
|
|
|
|
|
|
/* Override the linker spec strings to use the new emulation
|
|
The specstrings are concatenated as follows
|
|
LINK_EMUL_PREFIX.(''|'32'|'64'|LINK_DEFAULT_CPU_EMUL).SUBTARGET_LINK_EMUL_SUFFIX
|
|
*/
|
|
#undef LINK_EMUL_PREFIX
|
|
#undef SUBTARGET_LINK_EMUL_SUFFIX
|
|
|
|
#define LINK_EMUL_PREFIX "superh"
|
|
#define SUBTARGET_LINK_EMUL_SUFFIX ""
|
|
|
|
/* Add the SUBTARGET_LINK_SPEC to add the board and runtime support and
|
|
change the endianness */
|
|
#undef SUBTARGET_LINK_SPEC
|
|
#if TARGET_ENDIAN_DEFAULT == LITTLE_ENDIAN_BIT
|
|
#define SUBTARGET_LINK_SPEC "%(board_link) %(ldruntime) %{ml|!mb:-EL}%{mb:-EB}"
|
|
#else
|
|
#define SUBTARGET_LINK_SPEC "%(board_link) %(ldruntime) %{ml:-EL}%{mb|!ml:-EB}"
|
|
#endif
|
|
|
|
|
|
/* This is used by the link spec if the boardspecs file is not used (for whatever reason).
|
|
If the boardspecs file overrides this then an alternative can be used. */
|
|
#undef SUBTARGET_EXTRA_SPECS
|
|
#define SUBTARGET_EXTRA_SPECS \
|
|
{ "board_link", "--defsym _start=0x1000 --defsym _stack=0x30000" }, \
|
|
{ "asruntime", "" }, \
|
|
{ "cppruntime", "-D__GDB_SIM__" }, \
|
|
{ "cc1runtime", "" }, \
|
|
{ "ldruntime", "" }, \
|
|
{ "libruntime", "-lc -lgloss" }
|
|
|
|
|
|
/* Set the SUBTARGET_CPP_SPEC to define __EMBEDDED_CROSS__ which has an effect
|
|
on newlib and provide the runtime support */
|
|
#undef SUBTARGET_CPP_SPEC
|
|
#define SUBTARGET_CPP_SPEC \
|
|
"-D__EMBEDDED_CROSS__ %{m4-100*:-D__SH4_100__} %{m4-200*:-D__SH4_200__} %{m4-400:-D__SH4_400__} %{m4-500:-D__SH4_500__} \
|
|
%(cppruntime)"
|
|
|
|
/* Override the SUBTARGET_ASM_SPEC to add the runtime support */
|
|
#undef SUBTARGET_ASM_SPEC
|
|
#define SUBTARGET_ASM_SPEC "%{m4-100*|m4-200*:-isa=sh4} %{m4-400:-isa=sh4-nommu-nofpu} %{m4-500:-isa=sh4-nofpu} %(asruntime)"
|
|
|
|
/* Override the SUBTARGET_ASM_RELAX_SPEC so it doesn't interfere with the
|
|
runtime support by adding -isa=sh4 in the wrong place. */
|
|
#undef SUBTARGET_ASM_RELAX_SPEC
|
|
#define SUBTARGET_ASM_RELAX_SPEC "%{!m4-100*:%{!m4-200*:%{!m4-400:%{!m4-500:-isa=sh4}}}}"
|
|
|
|
/* Create the CC1_SPEC to add the runtime support */
|
|
#undef CC1_SPEC
|
|
#define CC1_SPEC "%(cc1runtime)"
|
|
|
|
#undef CC1PLUS_SPEC
|
|
#define CC1PLUS_SPEC "%(cc1runtime)"
|
|
|
|
|
|
/* Override the LIB_SPEC to add the runtime support */
|
|
#undef LIB_SPEC
|
|
#define LIB_SPEC "%{!shared:%{!symbolic:%(libruntime) -lc}} %{pg:-lprofile -lc}"
|